{"title":"Records on 05-21 in past years","description":"Record events on 05-21 across the years in the data.","dataAsOf":"2026-10-17T00:00:00Z","lastRevised":"2026-10-18","source":"Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products.","licence":"US Government open data (NOAA NCEI)","page":"https://worldextremeweathermonitor.com/on-this-day/05-21/","columns":[{"name":"id","description":"Stable record id: station, date, type and timescale."},{"name":"station_id","description":"GHCN-Daily station id."},{"name":"station_name","description":"Station name."},{"name":"country","description":"ISO 3166 alpha-2 country code."},{"name":"type","description":"Record type: tmax_high, tmax_low, tmin_high, tmin_low, prcp_high, snow_high or snwd_high."},{"name":"timescale","description":"daily, monthly or all-time."},{"name":"date","description":"Date the record was set, YYYY-MM-DD."},{"name":"value","description":"Record value in degrees Celsius or millimetres."},{"name":"unit","description":"c for degrees Celsius, mm for millimetres."},{"name":"previous_value","description":"The record it replaced, in the same unit. Empty for a first record."},{"name":"previous_date","description":"Date of the replaced record."},{"name":"margin","description":"How far the new value beat the old record, a non negative magnitude in the same unit. Zero for a tie."},{"name":"years_stood","description":"Whole years the replaced record had stood."},{"name":"significance","description":"Record Significance Score from 0 to 100 (see /methodology/)."},{"name":"tie","description":"True when the value tied the record."},{"name":"provisional","description":"True while the record is inside the 60 day provisional window."},{"name":"lat","description":"Station latitude in decimal degrees."},{"name":"lon","description":"Station longitude in decimal degrees."}],"rows":[{"id":"USW00024157-2004-05-21-prcp_high-all-time","station_id":"USW00024157","station_name":"Spokane Intl 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House)","country":"AU","type":"prcp_high","timescale":"daily","date":"2017-05-21","value":43.2,"unit":"mm","previous_value":12.4,"previous_date":"1923-05-21","margin":30.8,"years_stood":94,"significance":78,"tie":false,"provisional":false,"lat":-41.7792,"lon":147.7225},{"id":"ASN00027015-1981-05-21-prcp_high-monthly","station_id":"ASN00027015","station_name":"Moreton Telegraph Station","country":"AU","type":"prcp_high","timescale":"monthly","date":"1981-05-21","value":80.6,"unit":"mm","previous_value":35.6,"previous_date":"1916-05-04","margin":45,"years_stood":65,"significance":78,"tie":false,"provisional":false,"lat":-12.4536,"lon":142.6389},{"id":"SWE00137832-1996-05-21-prcp_high-daily","station_id":"SWE00137832","station_name":"Kalmar_D","country":"SE","type":"prcp_high","timescale":"daily","date":"1996-05-21","value":32.6,"unit":"mm","previous_value":14.8,"previous_date":"1887-05-21","margin":17.8,"years_stood":108,"significance":77,"tie":false,"provisional":false,"lat":56.69,"lon":16.35},{"id":"USW00025323-2017-05-21-prcp_high-monthly","station_id":"USW00025323","station_name":"Haines AP","country":"US","type":"prcp_high","timescale":"monthly","date":"2017-05-21","value":60.2,"unit":"mm","previous_value":37.1,"previous_date":"1945-05-01","margin":23.1,"years_stood":72,"significance":77,"tie":false,"provisional":false,"lat":59.2428,"lon":-135.5114},{"id":"GME00126106-1999-05-21-prcp_high-all-time","station_id":"GME00126106","station_name":"Mittenwald-Buckelwiesen","country":"DE","type":"prcp_high","timescale":"all-time","date":"1999-05-21","value":159.9,"unit":"mm","previous_value":118.6,"previous_date":"1959-06-13","margin":41.3,"years_stood":39,"significance":77,"tie":false,"provisional":false,"lat":47.4783,"lon":11.2667},{"id":"GMM00010963-1999-05-21-prcp_high-all-time","station_id":"GMM00010963","station_name":"Garmisch-Partenkirchen","country":"DE","type":"prcp_high","timescale":"all-time","date":"1999-05-21","value":138.2,"unit":"mm","previous_value":94.9,"previous_date":"1959-06-13","margin":43.3,"years_stood":39,"significance":77,"tie":false,"provisional":false,"lat":47.4839,"lon":11.0633},{"id":"USC00346278-2019-05-21-prcp_high-monthly","station_id":"USC00346278","station_name":"Newkirk 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